104043121 has 24 divisors (see below), whose sum is σ = 131085864. Its totient is φ = 81849600.

The previous prime is 104043119. The next prime is 104043127. The reversal of 104043121 is 121340401.

It can be written as a sum of positive squares in 4 ways, for example, as 5934096 + 98109025 = 2436^2 + 9905^2 .

It is not a de Polignac number, because 104043121 - 2¹ = 104043119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 104043095 and 104043104.

It is not an unprimeable number, because it can be changed into a prime (104043127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 148071 + ... + 148771.

It is an arithmetic number, because the mean of its divisors is an integer number (5461911).

Almost surely, 2^104043121 is an apocalyptic number.

It is an amenable number.

104043121 is a deficient number, since it is larger than the sum of its proper divisors (27042743).

104043121 is a wasteful number, since it uses less digits than its factorization.

104043121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961 (or 954 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 104043121 is about 10200.1529890487. The cubic root of 104043121 is about 470.3319233731.

Adding to 104043121 its reverse (121340401), we get a palindrome (225383522).

The spelling of 104043121 in words is "one hundred four million, forty-three thousand, one hundred twenty-one".